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Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jun. 30, 2018 | Jun. 07, 2018 | Mar. 01, 2018
Intangible assets with determinable lives |  |  |  |  |  |
Gross carrying value of finite-lived intangible assets | $ 77.7 | $ 19.7 |  |  |  |
Accumulated amortization | (17.0) | (14.3) |  |  |  |
Net carrying value of finite-lived intangible assets | 60.7 | 5.4 |  |  |  |
Gross carrying value | 215.4 | 131.9 |  |  |  |
Net carrying value | 198.4 | 117.6 |  |  |  |
Intangible assets with indefinite lives |  |  |  |  |  |
Amortization expense | 4.2 | 0.6 | $ 2.8 |  |  |
Estimated amortization expense related to intangible assets |  |  |  |  |  |
2019 | 5.2 |  |  |  |  |
2020 | 5.2 |  |  |  |  |
2021 | 5.2 |  |  |  |  |
2022 | 5.2 |  |  |  |  |
2023 | 5.2 |  |  |  |  |
Trademarks |  |  |  |  |  |
Intangible assets with indefinite lives |  |  |  |  |  |
Trademarks | 137.7 | 112.2 |  |  |  |
Customer relationships |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Gross carrying value of finite-lived intangible assets | 44.8 | 1.4 |  |  |  |
Accumulated amortization | (3.5) | (1.4) |  |  |  |
Net carrying value of finite-lived intangible assets | 41.3 | 0.0 |  |  |  |
Technology |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Gross carrying value of finite-lived intangible assets | 17.1 | 2.1 |  |  |  |
Accumulated amortization | (1.1) | (0.5) |  |  |  |
Net carrying value of finite-lived intangible assets | 16.0 | 1.6 |  |  |  |
Patents |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Gross carrying value of finite-lived intangible assets | 4.5 | 4.5 |  |  |  |
Accumulated amortization | (4.5) | (4.5) |  |  |  |
Net carrying value of finite-lived intangible assets | 0.0 | 0.0 |  |  |  |
Other |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Gross carrying value of finite-lived intangible assets | 11.3 | 11.7 |  |  |  |
Accumulated amortization | (7.9) | (7.9) |  |  |  |
Net carrying value of finite-lived intangible assets | 3.4 | $ 3.8 |  |  |  |
Schonstedt Instrument Company | Trademarks |  |  |  |  |  |
Intangible assets with indefinite lives |  |  |  |  |  |
Trademarks |  |  |  |  |  | $ 1.8
Schonstedt Instrument Company | Customer relationships |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  |  | 0.8
Schonstedt Instrument Company | Technology |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  |  | $ 8.3
Cues, Inc. | Trademarks |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  | $ 27.6 |
Cues, Inc. | Customer relationships |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  | 42.6 |
Cues, Inc. | Technology |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  | 8.5 |
Cues, Inc. | Order or Production Backlog |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Net carrying value of finite-lived intangible assets |  |  |  |  | $ 0.8 |
Disposal Group, Not Discontinued Operations | SPX Heat Transfer Business | Trademarks |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Intangible assets, discontinued operations | $ 3.3 |  |  |  |  |
Disposal Group, Not Discontinued Operations | SPX Heat Transfer Business | Technology |  |  |  |  |  |
Intangible assets with determinable lives |  |  |  |  |  |
Intangible assets, discontinued operations |  |  |  | $ 1.5 |  |

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